Improvement in aerating and cooling apparatus



G. W. BAIRD.

Aerating and Cooling-Apparatus.

N0.159,l42. v PatentedJan..26,;18 7"5h WITNESSES.- I INVENTOP @QJi/BairdUNITED PATENT Orrron GEORGE W. BAIRD. OF UNITED STATES NAVY.

IMPROVEMENT IN AERATING AND COOLING APPARATUS.

Specification forming part of Letters Patent No. 159,142, dated January26,1875japp1ication filed I January 5, 1875. i

To all whom it may concern.-

Be-it known that I, Gnonen W. BAIRD,

an officer in the Engineer Corps of the United States Navy, haveinvented an' improved ap- "paratus or device for efi'ecting theaeration.

and cooling of distilled water and otherliquid productsof.distillation,,of which the following is a specification: f I T hisinvention relates tothat class of appagame for which Letters Patent No.93,852 ncere heretofore granted to me on the 17th day of August in theyear 1869, and consists of the parts described, as follows, as willappear by reference to the drawing forming part of this specification,in which- A is the steam-pipe from any'boi-ler or map.

orator, connected by any suitable steam-tight-jQlilt=1$6"tihB"h6HOW'"p'l'lig"'OTpipU bore. This plug B istationaryand non-adjustable, and to itis a tached bya-steam-tightscrew-joint the nozzle 0, also stationary and .nOn-adjustabIe. To thisnozzle 0 a suitable pipe is attached by a steam-tight joint, which pipeleads to the proper compartment of any distilling or condensingapparatus. In the nozzle, 0 are a number of orifices or holes, 0 a,

forward face forms a steam-tight joint with the rear-face of ring D.These two faces may,

if'desired, be ground-togethe1u Inring-D-:is tapped radially a shortlever or levers, F, serw ing as a convenient handle or handles forrotating ring D, said ring having no motion axially, being adjusted toits seat by nut E.

The operation of this aerator can now be readily understood. To put itin operation the holes 0 c in nozzle 0 are closed by turning ring Duntil the spaces between holes d (2 lap the holes 0 0. Steam or othercondensible and B and nozzle 0 into the condenser or distillingapparatus. When the current of vaporized liquid is fairly in motion andcondensation commenced in the distiller, thus forming a partial vacuumtherein, the ring -D is turned so as to'adinit through holes (I d c' c acurrent of ai rproperly proportioned to the partial vacuum existing inthe annular chamber 0 caused by condensation, when the said condensationof the steam or other vapor, and theaeration and refrigeration of theliquid products of distillation are simultaneously effected as long asit is desired to continue the operation.

'' Experienced:avingdeternrinedtlie existence of certain mechanicaldefects .in the apparatus for which-Letters Patent were granted to me ashereinbefore mentioned, the said defects have been remedied in thisinvention, in which a much smaller tapered ground joint is employed, andthe nozzle 0 provided exteriorly with such joint is combined with aheater, cheaper, and lighter device-ring D -in order to regulate theadmission of air. -All leakage ot'jsteam is obviated, which leakage wasunavoidable in the former means employed for the passage for theentering air. No fluted pln g is required in this apparatus. The curvesbest adapted for commingling the air and Witnesses:

W. S. 0. REDMAN, FRED. G1. MOKEAN.

vapor is then admitted through the pipes A regulating by-a screw-threadthe opening of in the walls of the chamber 0 are such as are steam andthe device, as a whole, asfshaped,

n of the plug B, the nozzle

